Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Phnom Penh to Sydney from $438

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phnom Penh to Sydney departing on 18/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Phnom Penh to Sydney (PNH-SYD)

Cheap return flights

Logo
08:30 - 12:15PNH-SYD
47h 45m3 stops
Logo
10:45 - 06:30SYD-PNH
47h 45m3 stops
$2,673
Find Deal
Sat, 18 Oct - Sat, 8 Nov
Logo
08:30 - 10:45PNH-SYD
46h 15m3 stops
Logo
22:15 - 06:55SYD-PNH
36h 40m3 stops
$2,769
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Logo
08:30 - 10:45PNH-SYD
46h 15m3 stops
Logo
22:15 - 06:55SYD-PNH
36h 40m3 stops
$2,861
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Logo
08:30 - 10:45PNH-SYD
46h 15m2 stops
Logo
22:15 - 06:55SYD-PNH
36h 40m3 stops
$3,098
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Logo
08:30 - 10:45PNH-SYD
46h 15m3 stops
Logo
12:45 - 18:25SYD-PNH
33h 40m3 stops
$3,245
Find Deal
Sat, 25 Oct - Mon, 24 Nov
Logo
08:30 - 19:00PNH-SYD
30h 30m2 stops
Logo
10:45 - 06:30SYD-PNH
47h 45m3 stops
$3,701
Find Deal
Sat, 18 Oct - Sat, 8 Nov
Logo
08:30 - 15:55PNH-SYD
27h 25m2 stops
Logo
22:15 - 06:55SYD-PNH
36h 40m3 stops
$3,805
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Logo
08:30 - 20:35PNH-SYD
32h 05m3 stops
Logo
12:00 - 18:25SYD-PNH
58h 25m2 stops
$6,280
Find Deal
Thu, 23 Oct - Thu, 30 Oct
Logo
08:30 - 15:55PNH-SYD
27h 25m2 stops
Logo
21:30 - 18:25SYD-PNH
48h 55m2 stops
$6,451
Find Deal
Thu, 23 Oct - Thu, 30 Oct
Logo
08:30 - 12:15PNH-SYD
47h 45m3 stops
Logo
10:30 - 06:30SYD-PNH
72h 00m2 stops
$7,420
Find Deal
Sat, 18 Oct - Sat, 8 Nov

momondo Fare Finder

 
Customise your flight search to find flights from Phnom Penh to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 10 September 2025.
Use the filters below to find and compare flights from Phnom Penh to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 18/10

08:30-12:15

3 stops47h 45m

Sydney Kingsford Smith

Sat 8/11

10:45-06:30

3 stops47h 45m

$2,673

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 9/10

08:30-10:45

3 stops46h 15m

Sydney Kingsford Smith

Thu 16/10

22:15-06:55

3 stops36h 40m

$2,769

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 9/10

08:30-10:45

3 stops46h 15m

Sydney Kingsford Smith

Thu 16/10

22:15-06:55

3 stops36h 40m

$2,861

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 9/10

08:30-10:45

2 stops46h 15m

Sydney Kingsford Smith

Thu 16/10

22:15-06:55

3 stops36h 40m

$3,098

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 25/10

08:30-10:45

3 stops46h 15m

Sydney Kingsford Smith

Mon 24/11

12:45-18:25

3 stops33h 40m

$3,245

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 18/10

08:30-19:00

2 stops30h 30m

Sydney Kingsford Smith

Sat 8/11

10:45-06:30

3 stops47h 45m

$3,701

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 9/10

08:30-15:55

2 stops27h 25m

Sydney Kingsford Smith

Thu 16/10

22:15-06:55

3 stops36h 40m

$3,805

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 23/10

08:30-20:35

3 stops32h 05m

Sydney Kingsford Smith

Thu 30/10

12:00-18:25

2 stops58h 25m

$6,280

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Thu 23/10

08:30-15:55

2 stops27h 25m

Sydney Kingsford Smith

Thu 30/10

21:30-18:25

2 stops48h 55m

$6,451

Phnom PenhSydney

PNH - SYD

PNHSYD

Phnom Penh Pochentong

Sat 18/10

08:30-12:15

3 stops47h 45m

Sydney Kingsford Smith

Sat 8/11

10:30-06:30

2 stops72h 00m

$7,420

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Sydney from

How to get the cheapest flight ticket from Phnom Penh to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

The month of October is, on average, the cheapest month to fly to Sydney from Phnom Penh, with most prices found around $1,094. If you aren’t able to travel to Sydney during the month of October, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,117.

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Wednesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,268. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $1,555.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Phnom Penh to Sydney in the morning for as low as $1,242. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are $1,721 on average. Flights to Sydney from Phnom Penh at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Phnom Penh when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,322 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Phnom Penh for as low as $985 on momondo.

How have Phnom Penh to Sydney flight prices changed over time?

As of September 2025, prices for Phnom Penh to Sydney flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Phnom Penh to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Phnom Penh to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Phnom Penh to Sydney (PNH to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phnom Penh to Sydney

Direct flights

None
There are no direct flights from Phnom Penh to Sydney. There are no popular flight routes from Phnom Penh to Sydney.
Search flight deals

  • How far is Phnom Penh Pochentong to Sydney Kingsford Smith by plane?

    Phnom Penh Pochentong and Sydney Kingsford Smith are 7026.6 km apart from one another. Flights usually cover this in 17h 05m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phnom Penh Pochentong Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Phnom Penh to Sydney?

Best airlines flying from Phnom Penh to Sydney

Compare and see reviews for airlines that fly from Phnom Penh to Sydney with momondo
Airline
Rating
Free cancellation
Price
XiamenAirPriceFrom $692Free cancellationRating
6.6
41 reviews
Search XiamenAir flights
China SouthernPriceFrom $696Free cancellationRating
7.5
110 reviews
Search China Southern flights
Cathay PacificPriceFrom $1,014Free cancellationRating
7.6
993 reviews
Search Cathay Pacific flights
Vietnam AirlinesPriceFrom $1,105Free cancellationRating
7.6
201 reviews
Search Vietnam Airlines flights
Singapore AirlinesPriceFrom $1,261Free cancellationRating
8.1
1,365 reviews
Search Singapore Airlines flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Terrigal
Penrith
Katoomba
Lithgow
Leura
Manly
Bondi Beach
Coogee
Randwick
Cronulla
Charlestown
Newport
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Phnom Penh to Sydney?

Finding the right flight to Sydney from Phnom Penh is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

Can I find flights from Phnom Penh to Sydney with flexible booking policies on momondo?

All flight searches from Phnom Penh to Sydney on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Phnom Penh to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Phnom Penh. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Phnom Penh to Sydney right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Phnom Penh and alert you when they change.

An easier way to manage your Sydney trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 10/10
Fri 17/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia